<!DOCTYPE html>
<html>
  <!-- Test: if input isn't valid nor barred from constraint validation,
             but its default value hasn't been changed,
             it should not be affected by :-moz-ui-invalid pseudo-class. -->
  <link rel='stylesheet' type='text/css' href='style.css'>
  <body>
    <input class='notinvalid' type='file' required>
  </body>
</html>
